Here are links to commuter railroads, subways & light rail

CA  CO  CT   DC  FL  GA   IL   MD   MA  NJ   NY  OR   PA  TX  UT  VA  WA 

Canada

California

• Los Angeles - Light Rail
• Los Angeles - Metrolink
• San Diego - Coaster
• San Francisco - BART
• San Francisco - CalTrain
• San Jose/Stockton - Ace Rail

Colorado

• Denver - Light Rail

Connecticut

• New Haven - Shore Line East
• New York City - Metro North

District of Columbia

• Washington Metro

Florida

• Miami to West Palm Beach - Tri-Rail
• Miami - Metrorail
• Tampa

Georgia

• Atlanta - Marta

Illinois

• Chicago Transit Authority Rail maps and schedules
• Metra-Chicagoland
• South Shore Line-Chicago to South Bend

• Baltimore Area

Massachusetts

• Boston Commuter Rail
• Boston Subway & Light Rail

New Jersey

• New Jersey Transit
• Port Authority Trans Hudson

New York

• Metro North
• Long Island Railroad
• New York City Subways
• Port Authority Trans Hudson
• Syracuse Ontrack

Oregon

• Portland  Max Light Rail System
• Portland Streetcars

• Philadelphia - Regional Rail (Septa)
• Philadelphia - Subways & Light Rail (Septa)
• Pittsburgh - Light Rail

Texas

• Dallas - Trinity Railway Express
• Dallas - Light Rail

Utah

• Salt Lake City - Light Rail

Virginia

• Virginia Railway Express

Washington

• Seattle - Sounder
• Seattle - Light Rail

Wisconsin

• Kenosha Transit

British Columbia

• Vancouver - West Coast Express

Ontario

• Toronto

Quebec

• Montreal (In French)